Finding the Fourth Proportional to 100,282,923.70, 138,419,132.52 and 59,053,730.92
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Solution
The fourth proportional to 100,282,923.70, 138,419,132.52 and 59,053,730.92 is: 81,511,047.99
Step by Step Solution
- Step 1: Write the proportion equation
100,282,923.70 : 138,419,132.52 = 59,053,730.92 : x - Step 2: Convert to fraction form
100,282,923.70/138,419,132.52 = 59,053,730.92/x - Step 3: Cross multiply
100,282,923.70x = 138,419,132.52 × 59,053,730.92 - Step 4: Simplify right side
100,282,923.70x = 8,174,166,206,015,902 - Step 5: Solve for x
x = 8,174,166,206,015,902/100,282,923.70 - Step 6: Final answer
x = 81,511,047.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.